I went through this myself, and while there is no one-size-fits all solution, what worked for me was this:
- Get rough estimate of how much caffeine intake was typical
- Found a caffeine free-soda that I liked, (or decaf coffee)
- Using info from 1, replace caffeine with Excedrin (or some other caffeine pills), and switch routine to the caffeine free sodas
- Each day, shave a little bit of caffeine off. You'll probably need to buy a pill cutter
It's slow, but I never even got a headache from it. I initially tried just restricting my soda/coffee in take but found that I would drink much more than I intended too without even noticing. The Excedrin allowed me to carefully and easily control my intake.
- Get rough estimate of how much caffeine intake was typical
- Found a caffeine free-soda that I liked, (or decaf coffee)
- Using info from 1, replace caffeine with Excedrin (or some other caffeine pills), and switch routine to the caffeine free sodas
- Each day, shave a little bit of caffeine off. You'll probably need to buy a pill cutter
It's slow, but I never even got a headache from it. I initially tried just restricting my soda/coffee in take but found that I would drink much more than I intended too without even noticing. The Excedrin allowed me to carefully and easily control my intake.